Sayyiduna Jubayr bin Mut'im (may Allah be pleased with him) narrates: Mut'im bin Adi said: "You have done to Muhammad (peace and blessings be upon him) what you have done; now be the people who most restrain their hands from him." Abu Jahl bin Hisham said: "Rather, stay as (harsh) against him as you have been." At this, al-Harith bin Amir bin Nawfal said: "By Allah, the affair of Muhammad will always prevail, whether you begin it or conceal it."
Abu Yusuf said: Al-Harith was killed on the Day of Badr in a state of disbelief.
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1518